12856632 has 32 divisors (see below), whose sum is σ = 33540480. Its totient is φ = 4099040.

The previous prime is 12856621. The next prime is 12856639. The reversal of 12856632 is 23665821.

It is a super-3 number, since 3×12856632³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12856593 and 12856602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12856639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11094 + ... + 12197.

It is an arithmetic number, because the mean of its divisors is an integer number (1048140).

Almost surely, 2^12856632 is an apocalyptic number.

12856632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12856632 is an abundant number, since it is smaller than the sum of its proper divisors (20683848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12856632 is a wasteful number, since it uses less digits than its factorization.

12856632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23323 (or 23319 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 12856632 is about 3585.6145916704. The cubic root of 12856632 is about 234.2658968819.

The spelling of 12856632 in words is "twelve million, eight hundred fifty-six thousand, six hundred thirty-two".